'Specular' definitions:

Definition of 'specular'

adjective

Capable of reflecting light like a mirror; "mirrorlike surface of the lake"; "a specular metal" [syn: mirrorlike, specular]

From: GCIDE

Specular \Spec"u*lar\, a. [L. specularis (cf., from the same root, specula a lookout, watchtower): cf. F. sp['e]culaire. See Speculum.]
1. Having the qualities of a speculum, or mirror; having a smooth, reflecting surface; as, a specular metal; a specular surface. [1913 Webster]
2. (Med.) Of or pertaining to a speculum; conducted with the aid of a speculum; as, a specular examination. [1913 Webster]
3. Assisting sight, as a lens or the like. [Obs.] [1913 Webster]
Thy specular orb Apply to well-dissected kernels; lo! In each observe the slender threads Of first-beginning trees. --J. Philips. [1913 Webster]
4. Affording view. [R.] "Look once more, ere we leave this specular mount." --Milton. [1913 Webster]
Specular iron. (Min.) See Hematite. [1913 Webster]